在龙眼害虫中,近十年来我国又发现一种龙眼角颊木虱,也叫龙眼木虱。该虫虫体小型,成虫体长2—2.6毫米,背黑腹黄,颊锥极发达,圆锥形,向前侧方平伸,前翅有“K”形黑褐色斑。角颊木虱以成虫刺破龙眼嫩芽、嫩叶取食为害,若虫在嫩叶背面固定取食,被害处向里凹陷,若虫匿居其中,叶面成一个个小钉状突起,叶片皱缩畸形变小,提早落叶,树势衰退,常以春秋梢嫩叶受害重,叶被害率达30%左右。影响新梢抽发和叶片正常生长,还能传播龙眼鬼帚病,致使龙眼严重减产。角颊木虱在百色初步观察,一年可发生7— In the longan pests, in the past ten years, our country also found a long-horned buccal psyllid, also called long-eyed psyllids. The worm body is small, adult body length 2-2.6 mm, yellow dorsal, buccal cone very developed, conical, extending to the front side of the front wing with “K” -shaped dark brown spots. The buccal psyllid is punctured by adult worms, the young leaves are eaten by the young leaves, and the nymphs are fixedly fed on the back of the young leaves. The nymphs are sagged into the sap and the nymphs hide in them. Deformity smaller, early deciduous, tree recession, often in spring and autumn tender leaves suffer heavy, leaf damage rate of 30%. Affect the shoot shoots and leaves the normal growth, but also the spread of longan ghost broom disease, resulting in serious production of longan. Cheek psyllids in the initial observation of Baise, a year can occur 7-